Consolidated Statements of Comprehensive Income (Loss) - USD ($) shares in Thousands, $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Income Statement [Abstract] | ||||
| Operating Revenue | $ 184,126 | $ 210,387 | $ 360,383 | $ 429,807 |
| Operating Expenses | ||||
| Salaries, wages, and benefits | 69,135 | 87,159 | 138,230 | 180,396 |
| Rent and purchased transportation | 10,791 | 13,343 | 21,256 | 27,617 |
| Fuel | 40,549 | 33,709 | 73,286 | 71,627 |
| Operations and maintenance | 12,784 | 17,439 | 24,649 | 34,718 |
| Operating taxes and licenses | 3,765 | 4,422 | 7,717 | 9,163 |
| Insurance and claims | 11,783 | 14,154 | 24,562 | 26,076 |
| Communications and utilities | 1,977 | 2,206 | 3,574 | 4,471 |
| Depreciation and amortization | 32,306 | 41,463 | 67,463 | 83,091 |
| Other operating expenses | 9,537 | 11,693 | 18,759 | 24,531 |
| Gain on disposal of property and equipment | (25,050) | (2,782) | (32,367) | (4,566) |
| Total operating expenses | 167,577 | 222,806 | 347,129 | 457,124 |
| Operating income (loss) | 16,549 | (12,419) | 13,254 | (27,317) |
| Interest income | 370 | 198 | 578 | 326 |
| Interest expense | (1,878) | (2,962) | (4,088) | (6,066) |
| Income (loss) before income taxes | 15,041 | (15,183) | 9,744 | (33,057) |
| Federal and state income tax (benefit) | 4,458 | (4,328) | 3,982 | (8,329) |
| Net income (loss) | 10,583 | (10,855) | 5,762 | (24,728) |
| Other comprehensive income, net of tax | 0 | 0 | 0 | 0 |
| Comprehensive income (loss) | $ 10,583 | $ (10,855) | $ 5,762 | $ (24,728) |
| Net income (loss) per share | ||||
| Basic | $ 0.14 | $ (0.14) | $ 0.07 | $ (0.32) |
| Diluted | $ 0.14 | $ (0.14) | $ 0.07 | $ (0.32) |
| Weighted average shares outstanding | ||||
| Basic | 77,404 | 78,079 | 77,430 | 78,308 |
| Diluted | 77,437 | 78,142 | 77,463 | 78,375 |
| Dividends declared per share | $ 0.02 | $ 0.02 | $ 0.04 | $ 0.04 |
| X | ||||||||||
- Definition depreciation and amortization excluding depreciation on communication equipment No definition available.
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- Definition Net Income No definition available.
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- Definition Payment of rentals incurred in the period on property and equipment including payments made to independent contractors for providing and operating revenue equipment owned and maintained by independent contractors. No definition available.
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- Definition Weighted average shares outstanding [Abstract] No definition available.
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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Total costs of sales and operating expenses for the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The aggregate costs of direct communications and utilities incurred during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of tax incurred and cost of license directly related to good produced or service rendered. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Fuel costs incurred that are directly related to goods produced and sold and services rendered during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, excluding oil and gas property and timber property. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of interest expense classified as operating and nonoperating. Includes, but is not limited to, cost of borrowing accounted for as interest expense. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of expense for salary, wage, profit sharing; incentive and equity-based compensation; and other employee benefit. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Excludes Selling, General and Administrative Expense. No definition available.
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- References No definition available.
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- Definition The net result for the period of deducting operating expenses from operating revenues. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Insurance and claims costs directly related to goods produced and sold, or services rendered, during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after tax and before adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The total amount of other operating cost and expense items that are associated with the entity's normal revenue producing operation. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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